An LED package comprises a substrate, a reflector, a light-absorbable layer, an encapsulation layer and an LED chip. The reflector comprises a first incline with an inclined angle surrounding the LED chip. The light-absorbable layer comprises a second incline with another inclined angle direct to the LED chip, wherein the inclined angle of the second incline is greater than that of the first incline and the inclined angle of the first incline is between 90 to 150 degrees.
Legal claims defining the scope of protection, as filed with the USPTO.
1. An LED package, comprising: a substrate, having two electrodes; an LED chip, located on one of the electrodes and electrically connecting to the two electrodes; a reflector, having a first incline surrounding the LED chip, located on the substrate; a luminescent conversion layer, covering the LED chip and encircled by the reflector; and a light-absorbable layer, located around the reflector, having a second incline direct to the LED chip, wherein an inclined angle of the second incline is greater than that of the first incline.
2. The LED package as claimed in claim 1 , wherein the two electrodes comprises an anode and a cathode respectively extending from a top surface of the substrate to a bottom surface opposite to the top surface.
3. The LED package as claimed in claim 2 , wherein the two electrodes appear horizontal to each other.
4. The LED package as claimed in claim 3 , wherein the inclined angle of the first incline is an inclined angle between the first incline and the two electrodes.
5. The LED package as claimed in claim 4 , wherein the inclined angle of the first incline is between 90 to 150 degrees.
6. The LED package as claimed in claim 1 , wherein the LED chip electrically connects to the two electrodes via conductive wires.
7. The LED package as claimed in claim 1 , wherein the reflector is light-reflective made by plastic or polymer selected from Polyphthalamide (PPA) or epoxy resin.
8. The LED package as claimed in claim 1 , wherein the inclined angle of the second incline is an inclined angle between the second incline and the luminescent conversion layer.
9. The LED package as claimed in claim 1 , wherein the light-absorbable layer is made by plastic or polymer selected from Polyphthalamide (PPA) or epoxy resin.
10. The LED package as claimed in claim 9 , wherein the light-absorbable layer is black with a light absorbance over 70%.
11. The LED package as claimed in claim 1 , wherein a transparent encapsulation layer covers the luminescent conversion layer.
12. The LED package as claimed in claim 1 , wherein the luminescent conversion layer comprises at least one luminescent element.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
November 20, 2011
October 22, 2013
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